IAA RAS IAA Minor Planet Database

517103 (2013 EM20)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3179855833 ± 2.92e-08
Semi-major axis (a)1.3713108786 AU ± 6.06e-09
Inclination (i)8.36352262° ± 4.38e-06
Long. of Asc. Node (Ω)73.88003140° ± 5.87e-05
Arg. of Perihelion (ω)350.17326456° ± 5.85e-05
Mean Anomaly (M)42.68024369° ± 7.58e-06
Mean Motion (n)0.6137738683°/day ± 4.07e-09
Perihelion dist (q)0.93525379 AU ± 4.03e-08
Aphelion dist (Q)1.80736797 AU ± 4.08e-08
Orbital Period1.60584595 yr ± 1.06e-08
Physical Parameters
H (abs. magnitude)19.92
G (slope)0.15
Alternative Designations

2008 AO112

Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual1.766″
Uncertainty0
Orbit TypeApollo
MOID0.043499 AU
Observations Used2304
Oppositions9
Arc Total1997-2021
First Observation Used1997-04-07
Last Observation Used2021-05-06
Observations (4530)
Date Type RA Dec Mag Band Observatory
2020-09-26 18:54:12 S 03 41 57.017 -55 55 12.14 – V C57
2020-09-26 18:54:12 s 1 +106877.23 8 +326562.58 1130.0 – C57
2020-09-26 19:04:11 S 03 41 59.666 -55 55 19.81 – V C57
2020-09-26 19:04:11 s 1 +106546.67 3 +326944.83 1060.0 – C57
2020-09-26 19:14:12 S 03 42 02.705 -55 55 28.85 – V C57
2020-09-26 19:14:12 s 1 +106215.73 1 +327325.93 830.0 – C57
2020-09-26 19:24:11 S 03 42 06.655 -55 55 42.46 – V C57
2020-09-26 19:24:11 s 1 +105884.41 2 +327705.88 450.0 – C57
2020-09-26 19:34:12 S 03 42 09.223 -55 55 56.39 – V C57
2020-09-26 19:34:12 s 1 +105552.71 9 +328084.67 9920.0 – C57
2020-09-26 19:44:11 S 03 42 12.737 -55 56 09.24 – V C57
2020-09-26 19:44:11 s 1 +105220.65 5 +328462.32 9230.0 – C57
2020-09-26 19:54:11 S 03 42 16.056 -55 56 21.30 – V C57
2020-09-26 19:54:11 s 1 +104888.22 0 +328838.81 8400.0 – C57
2020-09-26 20:14:11 S 03 42 22.102 -55 56 43.26 – V C57
2020-09-26 20:14:11 s 1 +104222.24 7 +329588.36 6270.0 – C57
2020-09-26 20:24:12 S 03 42 25.224 -55 56 55.54 – V C57
2020-09-26 20:24:12 s 1 +103888.71 4 +329961.42 4990.0 – C57
2020-09-26 20:34:11 S 03 42 27.667 -55 57 07.09 – V C57
2020-09-26 20:34:11 s 1 +103554.81 8 +330333.33 3560.0 – C57
2020-09-26 21:04:12 S 03 42 37.714 -55 57 42.19 – V C57
2020-09-26 21:04:12 s 1 +102550.97 6 +331442.22 8400.0 – C57
2020-09-26 21:14:11 S 03 42 40.754 -55 57 53.28 – V C57
2020-09-26 21:14:11 s 1 +102215.65 1 +331809.57 6390.0 – C57
2020-09-26 21:24:11 S 03 42 43.697 -55 58 07.50 – V C57
2020-09-26 21:24:11 s 1 +101879.97 3 +332175.78 4240.0 – C57
2020-09-26 21:34:11 S 03 42 47.206 -55 58 21.32 – V C57
2020-09-26 21:34:11 s 1 +101543.94 3 +332540.85 1950.0 – C57
2020-09-26 22:14:12 S 03 42 59.189 -55 59 03.55 – V C57
2020-09-26 22:14:12 s 1 +100196.35 6 +333989.80 1410.0 – C57
2020-09-26 22:44:11 S 03 43 09.360 -55 59 40.24 – V C57
2020-09-26 22:44:11 s 1 +99182.074 0 +335064.64 2080.0 – C57
2020-09-26 23:04:11 S 03 43 15.434 -55 59 59.21 – V C57
2020-09-26 23:04:11 s 1 +98504.203 0 +335775.56 5200.0 – C57
2020-09-26 23:14:11 S 03 43 18.403 -56 00 12.85 – V C57
2020-09-26 23:14:11 s 1 +98164.768 0 +336129.33 1560.0 – C57
2020-09-26 23:44:12 S 03 43 28.306 -56 00 48.38 – V C57
2020-09-26 23:44:12 s 1 +97144.488 0 +337183.91 9880.0 – C57
2020-09-26 23:54:11 S 03 43 30.650 -56 00 54.22 – V C57
2020-09-26 23:54:11 s 1 +96803.742 0 +337533.19 5730.0 – C57
2020-09-27 00:14:11 S 03 43 36.862 -56 01 17.69 – V C57
2020-09-27 00:14:11 s 1 +96121.281 0 +338228.40 7070.0 – C57
2020-09-27 00:24:11 S 03 43 40.186 -56 01 31.76 – V C57
2020-09-27 00:24:11 s 1 +95779.571 0 +338574.33 2550.0 – C57
2020-09-27 00:54:12 S 03 43 49.973 -56 02 08.02 – V C57
2020-09-27 00:54:12 s 1 +94752.537 0 +339605.43 8260.0 – C57
2020-09-27 01:04:11 S 03 43 53.081 -56 02 16.40 – V C57
2020-09-27 01:04:11 s 1 +94409.564 0 +339946.90 3260.0 – C57
2020-09-27 01:14:12 S 03 43 55.939 -56 02 31.60 – V C57
2020-09-27 01:14:12 s 1 +94066.281 0 +340287.26 8140.0 – C57